Home / 401,056.06-553,457.20-222,208.06

Finding the Fourth Proportional to 401,056.06, 553,457.20 and 222,208.06

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Solution

The fourth proportional to 401,056.06, 553,457.20 and 222,208.06 is: 306,647.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,056.06 : 553,457.20 = 222,208.06 : x
  2. Step 2: Convert to fraction form
    401,056.06/553,457.20 = 222,208.06/x
  3. Step 3: Cross multiply
    401,056.06x = 553,457.20 × 222,208.06
  4. Step 4: Simplify right side
    401,056.06x = 122,982,650,705.03
  5. Step 5: Solve for x
    x = 122,982,650,705.03/401,056.06
  6. Step 6: Final answer
    x = 306,647.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.